GB1330540A - Process for the preparation of an optically active alpha- alkyl-glutamate n-carboxylic acid anhydride - Google Patents
Process for the preparation of an optically active alpha- alkyl-glutamate n-carboxylic acid anhydrideInfo
- Publication number
- GB1330540A GB1330540A GB4166470A GB4166470A GB1330540A GB 1330540 A GB1330540 A GB 1330540A GB 4166470 A GB4166470 A GB 4166470A GB 4166470 A GB4166470 A GB 4166470A GB 1330540 A GB1330540 A GB 1330540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- optically active
- alkyl
- carboxylic acid
- acid anhydride
- nca
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/10—Alpha-amino-carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1330540 γ - Alkyl glutamate - N - carboxylic acid anhydride ASAHI KASEI KOGYO KK 28 Aug 1970 [15 April 1970] 41664/70 Heading C2C [Also in Division C3] A process for producing an optically active γ-alkyl glutamate N-carboxylic acid anhydride (NCA) comprises reacting phosgene with a finely-divided optically active γ-alkyl glutamate suspended or dissolved in a reaction medium which is a solvent for the NCA adding to the resulting mixture a non-solvent for the NCA miscible with and having a boiling point higher than said reaction medium and distilling off said reaction medium to crystallize out the NCA in the form of microcrystals. Examples are furnished. The products are polymerized to obtain optically active poly-γ-alkyl glutamates.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3153770 | 1970-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1330540A true GB1330540A (en) | 1973-09-19 |
Family
ID=12333930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4166470A Expired GB1330540A (en) | 1970-04-15 | 1970-08-28 | Process for the preparation of an optically active alpha- alkyl-glutamate n-carboxylic acid anhydride |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2061268A5 (en) |
GB (1) | GB1330540A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116355201A (en) * | 2023-06-01 | 2023-06-30 | 苏州大学 | One-pot method for preparing copolymerized amino acid based on in-situ purification |
-
1970
- 1970-08-28 GB GB4166470A patent/GB1330540A/en not_active Expired
- 1970-09-10 FR FR7032944A patent/FR2061268A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116355201A (en) * | 2023-06-01 | 2023-06-30 | 苏州大学 | One-pot method for preparing copolymerized amino acid based on in-situ purification |
CN116355201B (en) * | 2023-06-01 | 2023-09-08 | 苏州大学 | One-pot method for preparing copolymerized amino acid based on in-situ purification |
Also Published As
Publication number | Publication date |
---|---|
FR2061268A5 (en) | 1971-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |